1N5938DG

Single Zener Diodes Overview

The Microsemi Corporation 1N5938DG is a single Zener diode with a nominal voltage of 36 V and a 1% tolerance. It operates in the DO-41 (DO-204AL) axial-lead package, providing a maximum steady-state power dissipation of 1.5 W at a lead temperature of 85 °C or lower. The device features hermetically sealed glass encapsulation with tungsten slugs for enhanced reliability. Electrical characteristics include a maximum dynamic impedance of 38 Ohms at a test current of 10.4 mA, a maximum reverse current of 850 µA at 1.0 V, and a forward voltage of 1.2 V at 200 mA.

Single Zener Diodes Feature Summary

• Hermetically sealed voidless hard glass body construction with tungsten slugs
• Metallurgically enhanced internal contact design for greater reliability and lower thermal resistance
• Inherently radiation hard as described in Microsemi MicroNote 050
• Non-sensitive to electrostatic discharge per MIL-STD-750 method 1020

Single Zener Diodes Applications

• Voltage regulation over a broad range of operating current and temperature
• High reliability applications requiring military equivalent screening levels
• Protection circuits utilizing flexible axial-lead mounting terminals

Single Zener Diodes Procurement Notes

Verify that the ordering suffix 'D' corresponds to the specific 1% voltage tolerance level documented in the official part nomenclature table. Confirm whether the component requires RoHS compliance or contains lead, as the datasheet indicates distinct commercial and non-RoHS options within this series. Ensure the procurement specification matches the required JEDEC type number and packaging format.

Single Zener Diodes Selection Notes

Select this component when high-reliability voltage regulation is required in an axial-lead package. The 1% tolerance provides precise voltage control compared to standard 5% or 10% variants. Consider the hermetic glass construction for environments where moisture ingress or radiation hardness is a critical design constraint. Verify thermal management requirements against the specified junction-to-ambient thermal resistance.

Single Zener Diodes Part Context

This component belongs to the 1N5913BG through 1N5956BG series of 1.5-watt Zener diodes manufactured by Microsemi Corporation. The series covers a wide voltage selection from 3.3 V to 200 V. The 'G' suffix denotes the glass casing variant, which offers higher rated temperatures and hermetic sealing compared to the optional plastic-body constructions available for the same JEDEC numbers.

Single Zener Diodes Replacement Considerations

Equivalent parts within the same series include 1N5938B and 1N5938C, which share the 36 V nominal rating but differ in voltage tolerance specifications.